ONESOURCE Platform – Emergency Backend Service maintenance in UAT

Scheduled Maintenance Report for Thomson Reuters Corporates

Completed

The scheduled maintenance has been completed.
Posted Jan 09, 2026 - 06:00 CST

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jan 09, 2026 - 00:00 CST

Update

ONESOURCE Platform will be performing maintenance on one of our backend services in UAT to ensure optimal performance and reliability.

ONESOURCE API Administration's UID Certificates are approaching its yearly renewal. UID Certificates renewal in UAT will be performed during this maintenance window.

During this maintenance window, some services may be temporarily affected from 9th Jan @ 12:00 AM CST to 12:30 AM CST; please try again later if you encounter issues, we apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.
Posted Jan 07, 2026 - 18:03 CST

Scheduled

ONESOURCE Platform will be performing maintenance on one of our backend services in UAT to ensure optimal performance and reliability.
We recommend to the ONESOURCE Platform users with active sessions, to please save your work before the beginning of this maintenance window.
During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted Dec 22, 2025 - 12:46 CST
This scheduled maintenance affected: Platform (AMERS UAT (uat.onesourcetax.com), AMERS UAT (uat.onesourcelogin.com)).